#Flags

A practical guide to implementing feature flags in JS/TS: what they are, when to use them, and how to...

Allen Ferrell, 26, ate the nuggets on Tuesday, May 19 while riding the Millennium Force roller coaster at Cedar Point in northern Ohio.

Inside the viral chicken nugget stunt that got TikTok creator Allen Ferrell banned from every Six Flags park for life.

"Yeah, sure, he's the dark and broody book boyfriend everyone wants, but he's also cringey and a stalker and a not-good person. I can't defend him, and I don't understand his hype."

Introducing a platform-wide understanding of feature flags in Vercel, and an experimental Next.js design pattern for working with flags in code.

Vercel Ship 2024 highlighted the integrations, ecosystem, and teams building the web's best products. Read the recap to catch up on all our announcements.

The Flags SDK is a free open-source library that gives developers the tools they need to use feature flags in Next.js and SvelteKit applications.

Learn how Beyond Menu resolved feature flagging and A/B testing issues in serverless environments by integrating Hypertune with Vercel’s Edge Config, achieving seamless performance and improved user experience.

The Flags SDK has been updated to version 3.0 and open sourced. Check out the new standalone Flags SDK documentation with updated examples to learn more.

The Flags SDK package has been renamed from @vercel/flags to flags, signaling our commitment to open source and great developer experiences.

Statsig, the unified platform for experimentation, feature flags, and analytics, is now available as a first-party integration on Vercel.

The newly released @flags-sdk/openfeature Flags SDK adapter for OpenFeature allows using any Node.js OpenFeature provider with the Flags SDK.

Flags SDK 3.2 now supports precomputing pattern in SvelteKit, making it possible to use feature flags on static pages without causing layout shift or jank.

Vercel discovered and patched an information disclosure vulnerability in the Flags SDK (CVE-2025-46332). Users should upgrade to flags@4.0.0.

View and override feature flags in your browser with Flags Explorer – now generally available for all customers

Introducing first-party integrations, the Flags Explorer, and improvements to the Flags SDK to improve feature flag workflow on Vercel.

Hypertune is now on the Vercel Marketplace—get native feature flags, A/B testing, and dynamic config with one-click setup and unified billing. Type-safe, edge-ready, and built for modern workflows to help you ship faster.

Add feature flags and A/B testing to your Vercel projects with GrowthBook, now available on the Vercel Marketplace.

PostHog now integrates directly with Vercel to help teams manage feature rollouts and run experiments without redeploying code. This integration makes it easier for Vercel users to: